920261 has 4 divisors (see below), whose sum is σ = 974412. Its totient is φ = 866112.

The previous prime is 920233. The next prime is 920263. The reversal of 920261 is 162029.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 256036 + 664225 = 506^2 + 815^2 .

It is a cyclic number.

It is not a de Polignac number, because 920261 - 2⁶ = 920197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27050 + ... + 27083.

It is an arithmetic number, because the mean of its divisors is an integer number (243603).

2⁹²⁰²⁶¹ is an apocalyptic number.

It is an amenable number.

920261 is a deficient number, since it is larger than the sum of its proper divisors (54151).

920261 is a wasteful number, since it uses less digits than its factorization.

920261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54150.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 920261 is about 959.3023506695. The cubic root of 920261 is about 97.2680790597.

The spelling of 920261 in words is "nine hundred twenty thousand, two hundred sixty-one".